Surfactant effect on determination of Cu2+ and Cd2+ ions by ion-selective electrodes providing evidence for the discrepancy between the point of zero charge and the isoelectric point of CdS

Tascioglu S., Tas D.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, cilt.302, ss.349-353, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 302
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1016/j.colsurfa.2007.02.058
  • Dergi Adı: COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.349-353
  • Anahtar Kelimeler: surfactant based separation processes, point of zero charge, isoelectric point, ion-selective electrodes, copper determination, cadmium determination, CuS, CdS, sodium dodecyl sulfate, cetyltrimethyl ammonium bromide, triton-X-100, MICELLAR-ENHANCED ULTRAFILTRATION, METAL-IONS, POTENTIOMETRIC RESPONSE, NONIONIC SURFACTANTS, DIFFERENTIAL-PULSE, REMOVAL, SEPARATION, COPPER, WATER, EXTRACTION
  • Gazi Üniversitesi Adresli: Hayır

Özet

The influence of the presence of some surface-active agents in the medium on determination of Cu2+ and Cd2+ ions via Orion ion-selective electrodes was investigated. Sodium dodecyl sulfate (SDS), cetyltrimethyl ammonium bromide (CTAB) and polyoxyethylene(10)isooetylphenyl ether(TX100) were used as anionic, cationic and non-ionic surface-active agents, respectively. SDS had minor effects on the potentiometric response of the ion selective electrode to Cu2+ ions while CTAB were observed to affect the determination of Cu2+ ions more remarkably. Both CTAB and TX 100 caused to small decrements on the concentration readouts for Cd2+ ions but relatively large decrements were-observed in the presence of SDS.